Android - 获取微调器的选定值返回 android.content.ContentResolver$CursorWrapperInner

Question

我的问题类似于this SO question（以及其他类似问题），但没有一个建议的解决方案对我有用。所有这些……

String selectedShelf = spinner.getItemAtPosition(spinner.getSelectedItemPosition()).toString();
String selectedShelf = spinner.getSelectedItem().toString();
String selectedShelf = spinner.getItemAtPosition(position).toString();
String selectedShelf = parentView.getItemAtPosition(position).toString();

...导致selectedShelf 的内容为"android.content.ContentResolver$CursorWrapperInner@43bb89b0"。

如何检索所选字符串的值？

这是我的代码：

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
    Bundle savedInstanceState) {

    // Inflate the layout for this fragment
    View fragmentView =  inflater.inflate(R.layout.fragment_browse_spinner, container, false);

    Spinner spinner = (Spinner)fragmentView.findViewById(R.id.browseSpinner);
    spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {
            if (id != -1L) {
                String selectedShelf = ...;
                Log.d(LOG_TAG, "selectedShelf: " + selectedShelf);              
            }
        }

        @Override
        public void onNothingSelected(AdapterView<?> parentView) {
        }

    });

    adapter = new SimpleCursorAdapter(getActivity(),
            android.R.layout.simple_spinner_item, // This is the layout that will be used for the standard/static part of the spinner. (You can use android.R.layout.simple_list_item_2 if you want two lines to be shown here.)
            null,
            new String[] {DbContentProvider.KEY_SHELF_NAME, DbContentProvider.KEY_EXTRA_SHELF_INFO},
            new int[]{android.R.id.text1, android.R.id.text2},
            0
    );

    // This sets the layout that will be used when the dropdown views are shown. I'm using android.R.layout.simple_list_item_2 so the subtext will also be shown.
    adapter.setDropDownViewResource(android.R.layout.simple_list_item_2);

    spinner.setAdapter(new NothingSelectedSpinnerAdapter(
            adapter,
            R.layout.browse_spinner_row_nothing_selected,
            getActivity()));

    getLoaderManager().initLoader(0, null, this);

    return fragmentView;
}

Answer 1

我已经想出了解决办法：

    spinner.setOnItemSelectedListener(new OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parentView, View selectedItemView, int position, long id) {

            TextView selectedShelfTextView = (TextView)selectedItemView.findViewById(android.R.id.text1); // You may need to replace android.R.id.text1 whatever your TextView label id is
            String selectedShelf = selectedShelfTextView.getText().toString();